Dictionary
booster
noun boost·er \ˈbü-stər\
Definition of BOOSTER
: one that boosts: as a : an enthusiastic supporter b : an auxiliary device for increasing force, power, pressure, or effectiveness c slang : shoplifter d : a radio-frequency amplifier for a radio or television receiving set e : the first stage of a multistage rocket providing thrust for the launching and the initial part of the flight f : a substance that increases the effectiveness of a medicament; especially : booster shot
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First Known Use of BOOSTER
1888
Related to BOOSTER
- Synonyms
- advocate, advocator, apostle, backer, exponent, champion, expounder, espouser, friend, gospeler (or gospeller), herald, hierophant, high priest, paladin, promoter, proponent, protagonist, supporter, true believer, tub-thumper, white knight
- Antonyms
- adversary, antagonist, opponent
Medical Dictionary
booster
noun boost·er \ˈbü-stər\
Medical Definition of BOOSTER
: a substance that increases the effectiveness of a medicament; especially : booster shot
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